McCarthy is likely to savagely tweak Spicer for his much-derided attempt to hide in some bushes in an effort to dodge reporters' questions about President Donald Trump's firing of FBI director James Comey. And with Alec Baldwin set to reprise his impression of Trump, "SNL" should yield some buzzworthy sketches Saturday.

Check out McCarthy's "SNL" promo, in which she sings "I'm So Pretty" while getting made up as Spicer: